Enable logging

The ingress controller provides two types of logs:

• the ingress controller’s process logs
• traffic access logs

View process logs Jump to heading #

When you install the Kubernetes Ingress Controller, it captures logs from the controller itself. Use kubectl logs to view the logs of the ingress controller pod:

bash
kubectl logs haproxy-kubernetes-ingress-7d84545b45-fpzm9 --namespace haproxy-controller

bash
kubectl logs haproxy-kubernetes-ingress-7d84545b45-fpzm9 --namespace haproxy-controller

output
bash
2020/07/17 17:07:47
_   _    _    ____                        _____ _____
| | | |  / \  |  _ \ _ __ _____  ___   _  | ____| ____|
| |_| | / _ \ | |_) | '__/ _ \ \/ / | | | |  _| |  _|
|  _  |/ ___ \|  __/| | | (_) >  <| |_| | | |___| |___
|_| |_/_/   \_\_|   |_|  \___/_/\_\\__, | |_____|_____|
_  __     _                       |___/             ___ ____
| |/ /   _| |__   ___ _ __ _ __   ___| |_ ___  ___  |_ _/ ___|
| ' / | | | '_ \ / _ \ '__| '_ \ / _ \ __/ _ \/ __|  | | |
| . \ |_| | |_) |  __/ |  | | | |  __/ ||  __/\__ \  | | |___
|_|\_\__,_|_.__/ \___|_|  |_| |_|\___|\__\___||___/ |___\____|
2020/07/17 17:07:47 HAProxy Ingress Controller v1.4.5-ee1 c2b5156
2020/07/17 17:07:47 Build from: ssh://git@gitlab.int.haproxy.com/haproxy-controller/kubernetes-ingress-ee
2020/07/17 17:07:47 Build date: 2020-07-12T00:00:53

output
bash
2020/07/17 17:07:47
_   _    _    ____                        _____ _____
| | | |  / \  |  _ \ _ __ _____  ___   _  | ____| ____|
| |_| | / _ \ | |_) | '__/ _ \ \/ / | | | |  _| |  _|
|  _  |/ ___ \|  __/| | | (_) >  <| |_| | | |___| |___
|_| |_/_/   \_\_|   |_|  \___/_/\_\\__, | |_____|_____|
_  __     _                       |___/             ___ ____
| |/ /   _| |__   ___ _ __ _ __   ___| |_ ___  ___  |_ _/ ___|
| ' / | | | '_ \ / _ \ '__| '_ \ / _ \ __/ _ \/ __|  | | |
| . \ |_| | |_) |  __/ |  | | | |  __/ ||  __/\__ \  | | |___
|_|\_\__,_|_.__/ \___|_|  |_| |_|\___|\__\___||___/ |___\____|
2020/07/17 17:07:47 HAProxy Ingress Controller v1.4.5-ee1 c2b5156
2020/07/17 17:07:47 Build from: ssh://git@gitlab.int.haproxy.com/haproxy-controller/kubernetes-ingress-ee
2020/07/17 17:07:47 Build date: 2020-07-12T00:00:53

View access logs Jump to heading #

By default, process logs will not include access logs from requests and responses. To see access logs when you call kubectl logs:

1. Get the name of the ConfigMap to edit by calling kubectl get configmap --namespace haproxy-controller. For example, the name might be haproxy-kubernetes-ingress.

2. Create a YAML file that contains a ConfigMap with the same name. Edit it to have the syslog-server key:

   example-configmap.yaml
   yaml
   apiVersion: v1
   kind: ConfigMap
   metadata:
     name: haproxy-kubernetes-ingress
     namespace: haproxy-controller
   data:
     syslog-server: "address:stdout, format: raw, facility:daemon"

   example-configmap.yaml
   yaml
   apiVersion: v1
   kind: ConfigMap
   metadata:
     name: haproxy-kubernetes-ingress
     namespace: haproxy-controller
   data:
     syslog-server: "address:stdout, format: raw, facility:daemon"

3. Apply the change with kubectl apply:

   bash
   kubectl apply -f example-configmap.yaml

   bash
   kubectl apply -f example-configmap.yaml

   You will then see access logs when you call kubectl logs:

   bash
   10.244.0.1:48817 [29/Sep/2020:20:34:48.208] http default-app-service-80/SRV_ZYWuA 0/0/0/1/1 200 504 - - ---- 4/2/0/0/0 0/0    "GET test.local/app HTTP/1.1"
   10.244.0.1:48817 [29/Sep/2020:20:34:49.761] http default-app-service-80/SRV_ZYWuA 0/0/0/0/0 200 504 - - ---- 4/2/0/0/0 0/0    "GET test.local/app HTTP/1.1"
   10.244.0.1:48817 [29/Sep/2020:20:34:50.787] http default-app-service-80/SRV_ZYWuA 0/0/0/0/0 200 504 - - ---- 4/2/0/0/0 0/0    "GET test.local/app HTTP/1.1"

   bash
   10.244.0.1:48817 [29/Sep/2020:20:34:48.208] http default-app-service-80/SRV_ZYWuA 0/0/0/1/1 200 504 - - ---- 4/2/0/0/0 0/0    "GET test.local/app HTTP/1.1"
   10.244.0.1:48817 [29/Sep/2020:20:34:49.761] http default-app-service-80/SRV_ZYWuA 0/0/0/0/0 200 504 - - ---- 4/2/0/0/0 0/0    "GET test.local/app HTTP/1.1"
   10.244.0.1:48817 [29/Sep/2020:20:34:50.787] http default-app-service-80/SRV_ZYWuA 0/0/0/0/0 200 504 - - ---- 4/2/0/0/0 0/0    "GET test.local/app HTTP/1.1"